Abstract: An adjustable oscillating wave-type irrigation sprinkler having an impact or impulse drive type mechanism for effecting side-to-side oscillation by a spray tube about a horizontal axis, the drive mechanism including a pair of drive spoons coupled to impact arms journaled for rotation relative to the spray tube and intercepting streams of water from the spray tube to produce incremental rotation of the spray tube about the horizontal axis.

Abstract: A pop-up irrigation sprinkler having a tubular pressure regulator mounted for movement in the pop-up stem and a funnel shaped grit protector shroud mounted within the stem above the pressure regulator to direct deleterious particulate matter downwardly through the pressure regulator.

Abstract: An oscillating wave-type sprinkler having a housing supporting an elongated spray tube which is driven by a water motor to oscillate from side-to-side about a generally horizontal axis. A throttling mechanism is provided to cyclicly throttle the water flow to the spray tube to improve distribution and enhance the aesthetic appearance of the wave-shaped spray, and the spray tube is mounted to the housing by end fittings which eliminate thrust loading on the tube.

Abstract: A contour control device for use with rotary irrigation sprinklers to water irregular areas about the sprinkler. The device includes a housing defining a chamber within which is disposed a throttling means comprising a flexible, resilient band and a plurality of adjustment pins which cooperate with a rotating inlet to the sprinkler to throttling the volume of water flow to the sprinkler in accordance with the rotary position of the sprinkler relative to the housing.

Abstract: An improved rotary drive sprinkler is provided for rotatably driving a pop-up spray head in a stepwise manner through a full-circle or reversibly within a selected part-circle path. The sprinkler includes a reversing trip mechanism having a pair of spaced-apart stops rotatable with the spray head and defining preset end limits of a part-circle path, wherein a stationary trip wire is engageable with the stops to switch an internal rotary drive assembly, such as a ball drive assembly, between forward- and reverse-drive operation. The trip wire flexes to accommodate forced spray head rotation to a maladjusted position beyond the end limits and, upon subsequent sprinkler operation, rides over ramped surfaces on the stops for automatic return to reversible operation between the preset end limits. Alternatively, the stops can be set in side-by-side relation with their ramped surfaces oriented for the trip wire to ride resiliently thereover without switching of the rotary drive assembly.

Abstract: A rotating stream sprinkler is provided with an improved spray head for sweeping one or more outwardly projected water streams through a prescribed arcuate spray path, wherein the spray head is adapted for enhanced self-flushing operation to prevent accumulation of grit and the like which could otherwise impair sprinkler performance. In the preferred form, the spray head is mounted at the upper end of a pop-up stem for movement to an elevated spraying position upon supply of water under pressure to the sprinkler. The water flows to the spray head and normally pressure-loads a plurality of valve balls onto a respective plurality of seats to prevent water flow through the seats to associated nozzle passages. A drive assembly rotates the spray head relative to a nonrotating cam positioned to lift one or more of the valve balls from their respective seats to permit outward discharge of one or more water streams through the nozzle passages, within the limits of the prescribed arcuate path.

Abstract: An impact drive sprinkler is provided from a relatively small number of easily assembled components which can be formed predominantly from lightweight molded plastic or the like. The sprinkler includes a unitary sprinkler body having a lower riser tube rotatably supported within a one-piece bearing sleeve adapted for connection to a water supply riser or the like, wherein the lower riser tube is joined to an upper range tube through which an irrigation water stream is projected. An oscillatory impact drive arm and a spring are snap-fit mounted with a controlled spring preload onto the sprinkler body for spring-loaded rotation of the drive arm toward a position with a deflector spoon unit thereon interrupting the projected water stream.

Abstract: An improved rotary drive sprinkler is provided for rotatably driving a pop-up spray head in a stepwise manner through a full-circle or reversibly within a selected part-circle path. The sprinkler includes a reversing trip mechanism having a pair of spaced-apart stops rotatable with the spray head and defining preset end limits of a part-circle path, wherein a stationary trip wire is engageable with the stops to switch an internal rotary drive assembly, such as a ball drive assembly, between forward- and reverse-drive operation. The trip wire flexes to accommodate forced spray head rotation to a maladjusted position beyond the end limits and, upon subsequent sprinkler operation, rides over ramped surfaces on the stops for automatic return to reversible operation between the reset end limits. Alternatively, the stops can be set in side-by-side relation with their ramped surfaces oriented for the trip wire to ride resiliently thereover without switching of the rotary drive assembly.

Abstract: A multiple pattern spray nozzle is provided for connection to a supply of water under pressure, wherein the spray nozzle is adjustable upon movement of a single selector ring to one of several different spray pattern settings. The spray nozzle comprises a nozzle housing for mounting, for example, onto a hose end trigger valve or the like and supporting a stem unit for receiving the supply of water under pressure. A pair of flow control sleeves are carried by a perforate faceplate for sliding movement relative to the stem unit and nozzle housing to define different water flow paths leading respectively from the stem unit to different nozzle outlets formed by the faceplate in cooperation with the stem unit and nozzle housing.

Abstract: An oscillating wave-type lawn sprinkler is provided of the type having a water-powered drive mechanism for angularly oscillating an elongated spray tube generally about its own axis, wherein the drive mechanism has a crank link coupled to the spray tube by an improved releasable coupling assembly. The releasable coupling assembly comprises a C-shaped clamp at one end of the crank link, sized to fit around the spray tube, an indentation in the spray tube, and at least one tab on the interior surface of the clamp for releasingly engaging the indentation. During normal operation, the tab is engaged in the indentation and the angularly oscillatory motion of the crank link is imparted to the spray tube. When the spray tube is subjected to an external rotational force exceeding a predetermined magnitude, the spray tube rotationally disengages the indentation from the tab to move independently of the crank link, thereby preventing damage to the drive mechanism.

Abstract: An improved quick connect coupling is provided for releasably connecting a pair of conduits, such as ordinary garden hose. The coupling comprises interlocking male and female fittings adapted for respective connection to a pair of hoses, wherein the male fitting includes a male member with an external circumferential groove for axial alignment with a generally opposed pair of arcuate slots in a female member on the female fitting. A C-shaped retainer is carried about the female fitting and includes a central spring base supporting a pair of locking arms which terminate in free ends having axially projecting lock tabs at the radially inner edges thereof, wherein these locking arms extend through the arcuate slots to position the arm free ends in engagement with radially oriented cam surfaces on the female member. In a normal unstressed condition of the retainer, the radially inner edges of the locking arms including the lock tabs extend into the male member groove to lock the coupling.

Abstract: A quick connect coupling is provided for quick and easy connection or disconnection of a pair of conduits, such as ordinary garden hose. The coupling comprises interlocking tubular male and female fittings adapted for respective connection to a pair of hoses, wherein the male fitting includes a male member with an external circumferential groove positioned for axial alignment with a generally opposed pair of arcuate slots in a female member on the female fitting. A generally C-shaped retainer is carried about the female member and includes a pair of locking arms projecting from a central base generally through the arcuate slots with their free ends engaging radially oriented cam surfaces on the female member. The locking arms are normally biased radially toward each other to position their radially inner edges within the circumferential groove in the male member to lock the coupling together.